Saseflower is right but the symbol is diferent in differerent counties.
$$\\0.333333=0.\dot3\qquad $In Australia.$\\\\
0.333333=0.\bar3\qquad $In some other countries$\\\\\\
0.2345345345...=0.2\dot3 4\dot 5\qquad $In Australia.$\\\\
0.2345345345...=0.2\bar3 \bar4 \bar5\qquad $In some other countries$\\\\
$ In the last example the bars are meant to be all joined together :)$$$
its _ but over the number (i dont know how to do it on a keyboard) for example for 0.4 there would be a _ over the 4, or if the number was 0.12986 and that section of numbers was repeating, the _ would be over all of them
Saseflower is right but the symbol is diferent in differerent counties.
$$\\0.333333=0.\dot3\qquad $In Australia.$\\\\
0.333333=0.\bar3\qquad $In some other countries$\\\\\\
0.2345345345...=0.2\dot3 4\dot 5\qquad $In Australia.$\\\\
0.2345345345...=0.2\bar3 \bar4 \bar5\qquad $In some other countries$\\\\
$ In the last example the bars are meant to be all joined together :)$$$